In its construction, ARCTIC SAFE continues the Cospolich reputation for strength and beauty. Heavy-duty marine-quality doors, latches, and hinges assure that "wear points" are minimized. Wall panels are reinforced with 4" foamed-in-place polyurethane, further supported by full perimeter molded dense urethane support system hardrails, and all is encased in .035 stainless steel. The floor is .060 stainless steel, reinforced with a rigid underlayment, and is capable of supporting 2500lbs. per square foot.